Notifuse / notifuse

Open-source, self-hosted newsletter, email marketing and transactional email platform. Visual MJML editor, Liquid templating, 7 sending providers.

Anil-matcha / open-agent-email

Open-source email infrastructure for AI agents: secure inboxes, REST and MCP APIs, SMTP, human approval workflows, signed webhooks, and Python and TypeScript SDKs. Self-host with Docker and PostgreSQL.

opencoredev / email-sdk

One simple SDK for transactional email across 23 adapters

MillionSend / millionsend

The open-source email platform — self-host on your own AWS SES, or use the cloud. Resend-compatible API.

panda-sandeep / dearagent

Email inbox API for AI agents, self-hosted on Cloudflare Workers. Open source, with an MCP server. AgentMail alternative.